.shadow_wp{
    background:#000;
    opacity: 0.6;
    position: fixed;
    top:0;
    bottom:0;
    left:0;
    right:0;
}
.layer{
    background: #fff;
    width:300px;
    height: 200px;
    left: 50%;
    top:50%;
    margin:-100px 0 0 -150px;
    position:fixed;
    border-radius: 2px;
    box-shadow: 1px 1px 50px rgba(0,0,0,.3);
}
.tith{
    padding:0 10px;
    height: 40px;
    line-height: 40px;
    background: #f8f8f8;
    border-bottom: 1px solid #eee;
}
.content{
    height: 159px;
    overflow-y: auto;
    padding: 0 10px;
    line-height:24px;
}
.close{
    font-weight:bold;
    font-family: '黑体';
    font-size:18px;
    font-style: normal;
    line-height:38px;
}